Home / 18,723.31-25,807.40-13,274.24

Finding the Fourth Proportional to 18,723.31, 25,807.40 and 13,274.24

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Solution

The fourth proportional to 18,723.31, 25,807.40 and 13,274.24 is: 18,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.31 : 25,807.40 = 13,274.24 : x
  2. Step 2: Convert to fraction form
    18,723.31/25,807.40 = 13,274.24/x
  3. Step 3: Cross multiply
    18,723.31x = 25,807.40 × 13,274.24
  4. Step 4: Simplify right side
    18,723.31x = 342,573,621.38
  5. Step 5: Solve for x
    x = 342,573,621.38/18,723.31
  6. Step 6: Final answer
    x = 18,296.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.